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heterodyne

Pronunciation: /ˈhɛt(ə)rə(ʊ)dʌɪn/

Electronics

Definition of heterodyne

adjective

relating to the production of a lower frequency from the combination of two almost equal high frequencies, as used in radio transmission: a heterodyne interferometer

verb

[with object]

combine (a high-frequency signal) with another to produce a lower frequency in this way: (as noun heterodyning)heterodyning converts incoming reference and test signals to 45 Mhz